Read more MODEL LP 15 • Operates on 12/24 Volt. 15 Halogen or LED lights diam 200mm. • Roof mountable system designed for emergency and service vehicles. • Displays any kind of static or dynamic symbol text or sign. • Car roof system with motor for automatic lifting & lowering LP 15 light. • Choose via control the direction of the arrow. • Optional we can add two Xenon Lights on the top part of the system for greater visibility and warning from a distance.